Average Co-Inventor Count = 2.07
ph-index = 3
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Matsushita Electric Industrial Co., Ltd. (6 from 27,375 patents)
6 patents:
1. 7400358 - Card installation device
2. 6082691 - Shaft rotator
3. 5742341 - Video camera having a plurality of housings for a variety of operations
4. 5738321 - Magnetic recording and reproducing device
5. 5636080 - Magnetic recording/playback apparatus having a leaf-type resilient
6. 5490019 - Magnetic tape driving system having rotating member with increased angle